If you are just looking for a better image of the bee, cropping would work. If you were trying to create something that was a little more artistic then I would use the third photo, crop and reposition the bee using the "rule of thirds". Something like these.
I agree with dirtdorphins about the seedling. If you knew the name of the plant, it would make a great shot for the database. But that out of focus leaf in front is a little distracting.
With the Lycoris there is just no good focal point. I'm guessing this was auto-focus, which can be difficult when you have so much depth. It would have been a better shot if you could have focused on the center of the flower pointing toward the right.
I like the way you used diagonal leading lines in the last two. Two very good photos, but I love the first one with the grass that is leaning to the right. That is my favorite on the page. The great focus, composition and the colors really work well together. That background looks like a watercolor painting.
